Wins
163
Indexed tournament wins
Player record
Jack Qin
Losses
79
Indexed tournament losses
Matches
242
Decisive results
Win rate
67.4%
Across indexed matches
Peak rating
2,001
Highest rating in the available history.
Biggest upset
Kretov, Yuri
Sacramento Spring Open · May 21, 2016 · +615 rating
Open →Biggest loss
Ishaan Mahendrakar
Sacramento Summer Open · Aug 27, 2016 · -779 rating
Open →Most frequent opponent
Jiang, Frank
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
24 tournament appearances · synced Aug 7, 2026, 8:29 PM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 7, 2015 | Sacramento Fall OpenTournament · View matches · USATT readjusted 784 → 874 | 784 | 980 | +106+128 / -22 | 9W / 2L |
| Sep 26, 2015 | Sacramento September OpenTournament · View matches | 413 | 784 | +371 | 16W / 0L |
| Apr 18, 2015 | Sacramento Spring OpenTournament · View matches | 401 | 416 | +15+22 / -7 | 7W / 2L |
| Oct 26, 2014 | Concord Cup Youth OpenTournament · View matches · Initial rating 401 | Unrated | 401 | — | 4W / 3L |
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